Eyes are the windows to the soul, how can a beautiful pair of eyes not be without double eyelids. Many people don’t know much about the eyes and limit themselves to just doing a double eyelid. Different problems in the eyes need to be treated. Ptosis is diagnosed when the upper eyelid covers the upper edge of the cornea and the pupil when looking straight ahead, and when the upper eyelid covers more than 1mm above the cornea. The function of the levator muscle is weakened or lost. In the absence of frontalis muscle contraction or head tilting back and eye turning upward, the upper eyelid partially or completely covers the pupil, which can block the line of sight. Ptosis is categorized into different degrees: mild, moderate and severe. Mild ptosis: the upper lid covers the upper 1/3 of the pupil and sags up to 2mm. Moderate ptosis: the upper lid covers 1/2 of the pupil and sags up to 3-4mm. Severe ptosis: the upper lid covers more than 1/2 of the pupil and sags up to 4mm. There are two methods of correcting ptosis: levator aponeurotomy (LAM) also known as levator shortening, which is a surgical procedure where the tissues around the eyelid are incised and separated. There are two ways to correct ptosis: The levator muscle method, also called levator muscle shortening, is performed by surgically incising and separating the tissues around the eyelid and severing the levator muscle to shorten the length of the muscle. The incision can be internal (conjunctival incision), external (skin incision) or combined internal and external incision. Indications: People with unilateral or bilateral mild or moderate congenital ptosis. The frontalis flap method, also known as frontalis flap suspension, elevates the position of the upper eyelid by suspending it. The upper eyelid lid is suspended from the frontalis muscle with sutures/fascia (autologous or allogeneic)/autogenous frontalis flap, and the movement of the upper eyelid is controlled by the movement of the frontalis muscle, thus realizing the correction of upper eyelid ptosis. Individuals with unilateral/bilateral moderate-to-severe ptosis who have severely low or absent levator muscle strength.